In 1981, the relations to Decca Arkas ended when they denied selling their electronic remote-controlled course repeater to EMRI, which was forced to develop its own.
From that point on, EMRI became free to supply the entire maritime industry.
EMRI sold around 20 custom made autopilots during this decade and was not a significant market challenge to anyone. However, business progressed in 1989 when the North Sea Shipyard decided to use EMRI´s analogue autopilots as standard. It was also around that time EMRI developed their first microprocessor product - the SEM1000 Autopilot.